Otherwise it looks much like the other rare earths.

There are two series of rare earth metals, the lanthanides and the actinides.

Ion exchange was for many years the only practical way to separate the rare earths in large quantities.

Like other rare earths, this element is never found as a free element in nature but is found bound in monazite sand ores.

Also, the method of separating the rare earth elements by the method of ion exchange had not been invented yet in Moseley's time.

They could not yet produce pure samples of all the rare earth elements, even in the form of their salts, and in some cases they were unable to distinguish between mixtures of two very similar (adjacent) rare earth elements from the nearby pure metals in the Periodic Table.

Rare earth elements change through time in small quantities (ppm, parts per million), so their proportion can be used for geochronology and dating fossils.

Most contaminants are coliform bacteria and faecal streptococcus, and among chemical ones, there are ammonia, nitrates, nitrites, rare heavy metals and other toxic agents.

And India s government has shown its political savvy by forging an agreement to provide Japan with rare earth minerals a vital component in many manufacturing processes after China chose to use its supplies of rare earths as a diplomatic stick.

From employing its strong trade position to exploiting its near monopoly on the global production of vital resources like rare earth minerals, China has staked out a more domineering role in Asia.

So, in 2000 we wrote Rare Earth. In 2003, we then asked, let's not think about where Earths are in space, but how long has Earth been Earth?

These rocks have low concentrations of large ion lithophile elements (LILE), light rare earth elements (LREE), volatile elements and other highly incompatible elements.

These are not rare occurrences.

From Rare Book Room.

This latter question about the possibility of more undiscovered ( missing ) elements had been a standing problem among the chemists of the world, particularly given the existence of the large family of the lanthanide series of rare earth elements.

The Global Economy s Tale Risks

How did you come by these rare books?

Let us make use of this rare window of opportunity.

They also published some very rare photos of him.

Many rare diseases appear early in life, and about 30 percent of children with rare diseases will die before reaching their fifth birthday.

This is a rare report of the Zhabdrung remaining.

The European Organization for Rare Diseases (EURORDIS) estimates that as many as 5,000 to 7,000 distinct rare diseases exist, and as much as 6 to 8 of the population of the European Union is affected by one.

The floor gave way.

We did not know that you possess this rare group of blood.

Bold added

Rare earth mines are found throughout the world.

We humans are very good at figuring out ways to make scarce things desirable.

When information is plentiful, the scarce resource is attention.

(iii) Solar terrestrial physics

A wood floor is beautiful.

Landmines and small arms

This document compiles and summarizes information on climate change impacts, adaptation measures and response strategies in Parties not included in Annex I to the Convention.

And, in rare cases, the vaccine itself has failed and led to infection.

This would help reduce consumption of scarce natural resources.

Writing on Facebook, Rajesh Warna shared the following about the rare blood group

I strapped on these chunky legs and I stood up.

Terribly sorry. I forgot the floor.

But, hey, at least it's hygienic.

Other Parties indicated the need for institutional development and strengthening relating to water management.

The atmosphere of Earth is a layer of gases surrounding the planet Earth that is retained by Earth's gravity.

In the same way, our lives are dominated by gravity but are almost oblivious to the force of surface tension.

The police used heavy vehicles.

Conflict is increasing as communities compete for scarce resources.

Capitalism is, among other things, a struggle between individual people over the control of scarce resources.

This means online readers can access and download a treasure trove of rare, archived materials for free.